Sad-iron.



No. 82351.90. PATENTED JUNE 12, 1906.

L. ROSENBAUM.

SAD IRON.

APPLXOATION FILED SEPT. 19. 1904.

' A i s which I sition; and, finally,

ingas,

UNITED sTATEs PATENT oEEIoE.

To all whom t may concern:

Beit known that I, LoUrs ROSENBAUM, a citizen of the Uni ed States, residing at the city of St. Louis, State of Missouri, have invented a certain new Aand useful Improve- I nent in Sad-Irons, of which the following is ,a full, clear, and exact description, such as "will enable -others skilled in the art to which it'appertains'to make and vuse the same, reference being had to the accompanying draw- ;v l'lfo'rming paltrof this specification, in c V Figure 1 is a vertical longitudinal sectional view. ig. 2 is a plan viewof the sad-iron proper, the handle-plate and burner being removed. Fig. 3 is an inverted plan view of the burner. Fig. 4 is a'rear elevational View of the sad-iron. Fig. 5 is a transverse sectional View on the line 5 5 of Fig. 1, and Fig. 6 is a top plan view of themiXing-chamber.

This invention relates to a new and useful improvement in sad-irons, and particularly to that class wherein a combustible fluid is used as the heating medium.

The object of my invention is to provide a simple and efficientv construction and one whereby I am enabled to use a less amount of combustible fluid and at the same time ob-l tain a greater heat-directly upon the part to be heated than has heretofore been accomplished in devices .of this character with am familiar.

The essential features of this inventionreside in the novel construction and arrangement of the mixin -chamber and in the novel manner in which t e burner is secured in pothe invention consists in the novel construction, arrangement, and combination of the several parts,`all as will hereinafter be described and afterward point s ed out in the claims.,

- In the drawings, wherein like characters designate like parts throughout the several views, 1 represents'th'e base of the sad-iron proper, which is preferably a hollow metallic 'castin open at its reargend. AThis casting is' provi ed with apluralityjof draft-openings 2 inv its side walls near therbottom thereof,

'above which and on the inside of said basecasting is formed a deflecting ribv or flange 3. The u per face or wall of the base-casting is providlzd with openings 4, 4, and 5 for purposes hereinafter speclfied. I also prefer to orm openings 6 near `tlletop front edge of the base-casting for increasing the draft.

" 7." and8 indicate. screw-threaded bosses l specificati-on of Letters Patent. Application filed September 19, 1904. Serial No. 224,940.

wall of the base.

Patented June 12, 1906. l

formed on the top wall of the base-casting at the rear thereof, extending forwardly from the former of which for the greater portion of thelength of said base-casting is a flange 9.

10 is the burner proper, which is preferably also a hollow metallic casting and which is adapted to fit within said base-casting, said burner having at its rear end feet or proj cctions 11, designed to rest upon the bottom This burner is also provided upon its under face with a borderilange 12, (see Fig. 3,) through which flange and communicating with the interior of the burner is a plurality obliquely formed, whereby the flame of the ignited gas issuing from said opening is projected directly againstthe point 1a of thev bottom plate of the base-casting for obvious purposes. ,f /f' 14 indicates a hollow screw-threaded boss formed upon the forward upper `)portion of the burner and communicating with they interior thereof. (See Fi 1.)

15 indicates what Iwi ldesignate the handle-plate, the handle 16 being preferably formed integral therewith. i

7 is a mixing-chamber, also preferably formed integral with the handle-plate 15 and consisting of a chamber 18 o en at its top, said mixing-chamber exten ing upwardly and forwardly from the forward end of said' handle-plate. This chamberfrom its relatively large open upper endagradually decreases in size toward its base, where it leads into a screw-threaded hollow boss 19, arranged on the under side of and preferably formed integral with the handle-plate 15. (See Fig. 1.) At about the base of said mixing-chamber is formed a number of air-inlet openings 20, and upon the upper said chamber is arranged a bridge-wall 21, having a'threaded opening through which an ordinary gas-cock 22 on the end of a gas-su ply pipe is `secured.v Projecting downwardly from the-cock 22 into the mixing-chamber for some distance for well-known reasons is a nozzley 23,1the gas-opening through said nozzle vbeing of greatly-reduced diameter with res ect to the diameter of the supplypipe. his nozzle 23 preferably terminates at aboutthe level of o r ings 20.

24 indicates a short 4section of'pipe which has threaded engagement with the screwthreaded boss 19 and when the parts are asn of jet-perforations 13,v the foremost of which, 13a, being preferably open end of a little below the opensembled is designed to pass through the opening 5 in the upper wall of the base-casting l and engage the screw-threaded boss 14 of the burner to hold said burner firmly in position and also act as a communicating passage l into said burnerlor the gas and air which have commingled in the mixing-chamber. Thus it will be seen that a very simple and practical means is employed for securing the parts together and at the same time holding the burner lirmly in position within the sad-iron proper.

Interposed between the upper wall of the base-casting 1 and the handle-plate 15 and resting on the bosses 7 and S and the llange 9 are ametal deleetor-plate .25 and an asbestos or'some other non-heat-conducting lining 26, said plate and lining being held in position by means ot' screws 27, which screws also serve as a means for preventing lateral movement of the handle-plate. The dellector-plate Q5' at the side of the base opposite to t-hat upon which. lthel flange @,is formed-is bent downwardly to dellect the heat and products ol' combustion awa-y from the user of the sadf iron. By this construction the [lange 95. together with the dellector-plateandlnonwheatconducting lining, fully protects the operator or user of the iron from the heat, the open.

ing formed between the delector-plate and the top wall of the base-casting permits the products of combustion passing up t-hrough openings 4 to escape,` and the downwardlyextending portion of the d'elect-or-plate dellects said produflcts awaydl'rom .the operator.

By t-he novel construction above described I bring the flexible supply-hose used in devices of this character out of interference with the arm of the operator, and by arranging the open-ended mixing-chamber above and over the burner and at an angler thereto I am enabled to utilize the atmosphericpressure of cold air in forcing the air into and-through the mix ing-chamber, the tendency of cold air to tall and the increased draft obtained by my construction producing a greater pressure within the mixing-chamber and more thoroughly forcing the gas within. and through the burner, the ignited gas being projected directly upon the base ot the sad-.iron proper and the heating power of the-gas bein g greatl multi plied by the increased draft so obtaine( 'I thus secure a maximum amount of heat upon the partvto be heated with a minimum amount of fuel.

I am aware that minor changes in the construction, arrangement, and combination of' the several parts of my iron may be made and substituted for those herein shown and described withoutin the least departing from the nature and 'principle ol my invention.

Having tlmsdescribed'my invention, what I=claim, and desire tosecure by .Letters Iatent, is-

1. In a sad-iron, the combination with a hollow base open at one end and'having -air inlet and exhaustopcnings, ot' a burner fit# ting therein and extending substantially the length thereof, a handle-plate,a mixing-chamber on said handle-plate, a gas-supply pipe leading into said mixing-chamber, and a-pipeconnecting said handle-plate to said vbase and providing a communicating passage for-the A mixed air and gas between said burnerand' mixing-chamber; substantially as described! y.. ln a sad-iron, the combination withva hdllow base-casting open at-one end and :also having air inlet and exhaust-openings, ola hollow burner fitting therein and extending substantially the length thereof, a handleplate for said base, al mixing-chamber on said handle-plate, a gas-supply pipe leading into said mixing-chaml'ier, and means for holding said handle-plate, base and burner togetherand providing a communicating passage between said mixing-ch amber and burner; sii-bstantially as described.

4. ln a sad-iron, the combinationawith a hollow base open at one end and having-airinlet openings in its sides and openingsfor the escape. of products of combustion-at its top, of a burner litting in said base and having atuel-inlet opening in its top and et-perl'orations in its bot-tom, a yhandle-plate for said base, a mixing-chamber formed integra-l with said handle-plate and oper to atmosphere at its upper end and a pipe connecting said mixing-chamber and burner together and providing a communicating passage foie-the mixed air and gas therebetween; vsubstan tially as described.l

5. In a sad-iron, the combination witlra hollow base, ola burner fitting therein, said .burner being provided .with a-hol-lowthread-z ed boss, a handle-plate also providedwitha-` ICO ITO 

